求翻译：漂珠大部分为外表光滑的珠形颗粒, 泛珍珠光泽, 灰白色透明或半透明; 化学成分主要为SiO2 和Al2O3 ,矿物组成主要为石英相和莫莱石相; 漂珠的粒径一般为50~ 200 微米, 壁厚约为粒径的5% ~ 8% , 具有是什么意思？

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Most of the glossy appearance of drift-Chu Chu-shaped particles with the PAN pearl luster, gray and white translucent; chemical composition is mainly SiO O 3 2 2 and Al mineral composition, mainly quartz sang and morlet shek sang; drift-pearl of the particle size is generally between 50 to 200 micro

Floats the bead majority of for the semblance smooth ball pellet, exudes the pearly luster, the iron grey transparent or translucent; The chemical composition mainly is SiO2 and Al2O3, the mineral composition mainly for the quartz and not the Lai stone; Floats the bead particle size is generally 50~

Most of floating bead appearance smooth Pearl-shaped particles, the Pan-Pearl luster, grey and white transparent or translucent; Chemical constituents of SiO2 and Al2O3, mineral consisting mainly of quartz and Mo Laishi phase; Floating beads General 50~200 Micron particle size, particle size of wall

Most of floating bead appearance and smooth bead-shaped particles, the Pan-pearl luster, white transparent or translucent; chemical composition is mainly SiO2 and Al2O3, mineral composition is mainly quartz and stone with Morley; floating bead size is generally 50 ~ 200 microns, wall thickness is ab